/**
***********************************************************************
*
* Copyright 2011 Stefan Wöhle
*
* This file is part of PixelMath
*
* PixelMath is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PixelMath is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PixelMath. If not, see <http://www.gnu.org/licenses/>.
*
***********************************************************************
*/

#include "sine.h"
#include "formulaexception.h"
#include <math.h>   // check if this is plattform-independent

#define PI 3.14159265

Sine::Sine(QObject *parent) :
    Formula(parent)
{
}

double Sine::value(int x, int y)
{
   checkPreconditions();

   int radiant = rFormula->value(x,y);

   if (radiant < 0)
       throw FormulaException(tr("Calculated parameters are out of range."), PARAMS_OUT_OF_RANGE, this);

   return sin(radiant*PI/180);
}

QString Sine::label()
{
    return QString("sin");
}

void Sine::checkPreconditions() {
    if (rFormula == NULL)
        throw FormulaException(tr("Formula for radiant is missing."), MISSING_PARAMETER, this);
}
